@import url('https://fonts.googleapis.com/css2?family=Press+Start+2P&display=swap');

:root {
  --p1-color: #4fd6ff;
  --p2-color: #ff6fb0;
  --bg: #0d0a1f;
}

* { box-sizing: border-box; }

.hidden { display: none !important; }

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: #eae6ff;
  font-family: 'Press Start 2P', monospace;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 16px;
  overflow: hidden;
}

h1 {
  font-size: 14px;
  letter-spacing: 2px;
  color: #cdbcff;
  text-shadow: 0 0 8px rgba(150, 110, 255, 0.6);
  margin: 0;
}

/* ============================================================
   Mode select + online lobby
   ============================================================ */
#mode-select {
  display: flex;
  gap: 18px;
}
#mode-select.hidden { display: none; }

#mode-select button {
  font-family: 'Press Start 2P', monospace;
  font-size: 12px;
  background: #1a1040;
  color: #eae6ff;
  border: 2px solid #4a3a80;
  border-radius: 6px;
  padding: 16px 22px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  transition: 0.15s;
}
#mode-select button span {
  font-size: 8px;
  color: #9c8fcf;
}
#mode-select button:hover {
  background: #2c2350;
  border-color: #a88cff;
  box-shadow: 0 0 14px rgba(111, 87, 201, 0.5);
}

#lobby {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'Press Start 2P', monospace;
  font-size: 9px;
  background: rgba(18, 8, 50, 0.5);
  border: 2px solid #3a2d6b;
  border-radius: 6px;
  padding: 10px 14px;
}
#lobby.hidden { display: none; }
#lobby input {
  font-family: 'Press Start 2P', monospace;
  font-size: 9px;
  background: #0b0318;
  color: #eae6ff;
  border: 2px solid #3a2d6b;
  border-radius: 4px;
  padding: 8px 10px;
  width: 100px;
}
#lobby button {
  font-family: 'Press Start 2P', monospace;
  font-size: 9px;
  background: #2c2350;
  color: #eae6ff;
  border: 2px solid #6f57c9;
  border-radius: 5px;
  padding: 9px 12px;
  cursor: pointer;
}
#lobby button:hover { background: #3a2d6b; }
#status { color: #ffe27a; white-space: nowrap; }
#roomStatus { color: #9c8fcf; white-space: nowrap; }

/* ============================================================
   Stage + canvas
   ============================================================ */
#stage {
  position: relative;
  border: 3px solid #2c2350;
  border-radius: 6px;
  box-shadow: 0 0 0 4px #0d0a1f, 0 0 30px rgba(120, 80, 255, 0.35);
  overflow: hidden;
  background: #0b0318;
}
#stage:focus { outline: none; }

canvas {
  display: block;
  position: relative;
  z-index: 1;
  background: transparent;
}

/* ============================================================
   CSS waterfall background scene
   One shared layer spanning the full stage width so both
   split-screen halves share the same continuous waterfalls.
   ============================================================ */
#scene-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

/* Each waterfall is a full-height column animated with a
   repeating gradient that scrolls downward — clean, glowing,
   no canvas overhead. Positions mirror the inspo art layout. */
.waterfall {
  position: absolute;
  top: -4%;
  bottom: -4%;
  width: 28px;
  border-radius: 6px;
  background: repeating-linear-gradient(
    to bottom,
    rgba(230, 252, 255, 0.92) 0px,
    rgba(160, 228, 255, 0.55) 14px,
    rgba(100, 195, 255, 0.28) 28px,
    rgba(160, 228, 255, 0.55) 42px,
    rgba(230, 252, 255, 0.92) 56px
  );
  background-size: 100% 56px;
  filter:
    drop-shadow(0 0 7px rgba(100, 210, 255, 0.6))
    drop-shadow(0 0 18px rgba(60, 160, 255, 0.3));
  animation: waterFlow 0.85s linear infinite;
}

/* Bright inner core stream */
.waterfall::after {
  content: '';
  position: absolute;
  inset: 0;
  left: 33%;
  right: 33%;
  background: rgba(240, 254, 255, 0.5);
  filter: blur(1px);
}

@keyframes waterFlow {
  from { background-position-y: 0; }
  to   { background-position-y: 56px; }
}

/* Symmetric placement — each column pair mirrors across the 50% seam
   so they read as one connected scene across both halves */
.wf-1 { left:  12%; }
.wf-2 { left:  35%; }
.wf-3 { left:  65%; }
.wf-4 { left:  88%; }

/* ============================================================
   HUD — P1 score | timer | P2 score in a row across the top
   ============================================================ */
#hud {
  position: absolute;
  top: 0; left: 0; right: 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  pointer-events: none;
  z-index: 5;
  padding: 10px 12px;
  gap: 8px;
}

.hud-player {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.hud-player.p1 { align-items: flex-start; }
.hud-player.p2 { align-items: flex-end; }

.player-label {
  font-size: 9px;
  padding: 3px 7px;
  border-radius: 4px;
  background: rgba(10, 8, 30, 0.6);
  border: 2px solid currentColor;
}
.hud-player.p1 .player-label { color: var(--p1-color); }
.hud-player.p2 .player-label { color: var(--p2-color); }

.height-score {
  font-size: 18px;
  background: rgba(10, 8, 30, 0.6);
  padding: 5px 10px;
  border-radius: 4px;
  border: 2px solid currentColor;
  min-width: 80px;
  text-align: center;
}
.hud-player.p1 .height-score { color: var(--p1-color); }
.hud-player.p2 .height-score { color: var(--p2-color); }

#timer-display {
  font-size: 15px;
  color: #ffe27a;
  text-shadow: 0 0 12px rgba(255, 210, 90, 0.65);
  background: rgba(10, 8, 30, 0.6);
  border: 2px solid rgba(255, 210, 90, 0.4);
  border-radius: 5px;
  padding: 6px 14px;
  letter-spacing: 1px;
  white-space: nowrap;
  align-self: center;
  transition: color 0.3s;
}

/* ============================================================
   Start / game-over overlay
   ============================================================ */
#start-overlay {
  position: absolute;
  inset: 0;
  background: rgba(8, 6, 22, 0.78);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  cursor: pointer;
}
#start-overlay.hidden { display: none; }

#start-text {
  font-size: 16px;
  text-align: center;
  color: #fff;
  line-height: 2;
  text-shadow: 0 0 10px rgba(150, 110, 255, 0.9);
}
#start-text span {
  display: block;
  font-size: 9px;
  color: #cdbcff;
  margin-top: 8px;
}

/* ============================================================
   Controls row below stage
   ============================================================ */
#controls-row {
  display: flex;
  align-items: center;
  gap: 24px;
  font-size: 9px;
  color: #9c8fcf;
  flex-wrap: wrap;
  justify-content: center;
}

.key-hint { color: #9c8fcf; }
kbd {
  display: inline-block;
  background: #1a1040;
  border: 1px solid #4a3a80;
  border-radius: 3px;
  padding: 1px 5px;
  font-family: 'Press Start 2P', monospace;
  font-size: 8px;
  color: #cdbcff;
  margin: 0 1px;
}

/* Timer section: duration picker + restart */
#timer-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  background: rgba(18, 8, 50, 0.5);
  padding: 8px 14px 10px;
  border-radius: 6px;
  border: 2px solid #3a2d6b;
}

#timer-buttons {
  display: flex;
  gap: 6px;
}

.timer-btn {
  font-family: 'Press Start 2P', monospace;
  font-size: 8px;
  background: #1a0f38;
  color: #9c8fcf;
  border: 2px solid #3a2d6b;
  border-radius: 4px;
  padding: 5px 10px;
  cursor: pointer;
  transition: 0.1s;
}
.timer-btn:hover {
  background: #2c2350;
  color: #eae6ff;
  border-color: #6f57c9;
}
.timer-btn.active {
  background: #6f57c9;
  color: #fff;
  border-color: #a88cff;
  box-shadow: 0 0 12px rgba(111, 87, 201, 0.6);
}

#restartBtn {
  font-family: 'Press Start 2P', monospace;
  font-size: 10px;
  background: #2c2350;
  color: #eae6ff;
  border: 2px solid #6f57c9;
  border-radius: 5px;
  padding: 8px 16px;
  cursor: pointer;
}
#restartBtn:hover  { background: #3a2d6b; }
#restartBtn:active { transform: translateY(1px); }

#menuBtn {
  font-family: 'Press Start 2P', monospace;
  font-size: 10px;
  background: #2c2350;
  color: #eae6ff;
  border: 2px solid #6f57c9;
  border-radius: 5px;
  padding: 8px 16px;
  cursor: pointer;
}
#menuBtn:hover  { background: #3a2d6b; }
#menuBtn:active { transform: translateY(1px); }

/* ============================================================
   Touch controls — shown only on touch devices in Online mode
   ============================================================ */
#touch-controls {
  position: absolute;
  inset: 0;
  z-index: 6;
  pointer-events: none; /* only the buttons themselves are tappable */
}
#touch-controls.hidden { display: none !important; }

#touch-move {
  position: absolute;
  left: 14px;
  bottom: 14px;
  display: flex;
  gap: 10px;
}

.touch-btn {
  pointer-events: auto;
  touch-action: none; /* stop scroll/zoom gestures from eating the tap */
  -webkit-user-select: none;
  user-select: none;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: rgba(44, 35, 80, 0.75);
  border: 2px solid #6f57c9;
  color: #eae6ff;
  font-size: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.touch-btn:active {
  background: rgba(111, 87, 201, 0.85);
  transform: scale(0.94);
}

.touch-jump {
  position: absolute;
  right: 14px;
  bottom: 14px;
  width: 74px;
  height: 74px;
  font-size: 28px;
  background: rgba(47, 184, 232, 0.25);
  border-color: #4fd6ff;
}
.touch-jump:active {
  background: rgba(79, 214, 255, 0.45);
}